./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c172a69da8014b256a4fe200ae36374b8205f0bb7886b059c874c99d6c4501c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:23:05,049 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:23:05,180 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 22:23:05,196 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:23:05,197 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:23:05,258 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:23:05,259 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:23:05,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:23:05,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:23:05,267 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:23:05,267 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:23:05,268 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:23:05,268 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:23:05,270 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:23:05,271 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:23:05,271 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:23:05,272 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:23:05,272 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:23:05,272 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:23:05,273 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:23:05,273 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:23:05,274 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:23:05,274 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:23:05,275 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:23:05,275 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:23:05,275 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:23:05,276 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:23:05,277 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:23:05,277 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:23:05,278 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:23:05,279 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:23:05,279 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:23:05,280 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:23:05,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:23:05,280 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:23:05,280 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:23:05,281 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:23:05,281 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:23:05,281 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c172a69da8014b256a4fe200ae36374b8205f0bb7886b059c874c99d6c4501c [2023-11-06 22:23:05,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:23:05,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:23:05,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:23:05,674 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:23:05,675 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:23:05,676 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i [2023-11-06 22:23:08,817 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:23:09,253 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:23:09,254 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i [2023-11-06 22:23:09,277 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/data/f887de7ef/0fa1876a1485471798b7b243693eebaf/FLAGb3a781177 [2023-11-06 22:23:09,298 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/data/f887de7ef/0fa1876a1485471798b7b243693eebaf [2023-11-06 22:23:09,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:23:09,306 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:23:09,310 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:23:09,310 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:23:09,316 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:23:09,316 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:23:09" (1/1) ... [2023-11-06 22:23:09,318 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17497fb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:09, skipping insertion in model container [2023-11-06 22:23:09,318 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:23:09" (1/1) ... [2023-11-06 22:23:09,378 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:23:09,794 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:23:09,813 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-06 22:23:09,813 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@16aef428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:09, skipping insertion in model container [2023-11-06 22:23:09,814 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:23:09,814 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 22:23:09,816 INFO L158 Benchmark]: Toolchain (without parser) took 508.73ms. Allocated memory is still 161.5MB. Free memory was 129.4MB in the beginning and 115.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 22:23:09,817 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 125.8MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:23:09,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.21ms. Allocated memory is still 161.5MB. Free memory was 128.7MB in the beginning and 115.2MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 22:23:09,819 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 125.8MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.21ms. Allocated memory is still 161.5MB. Free memory was 128.7MB in the beginning and 115.2MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c172a69da8014b256a4fe200ae36374b8205f0bb7886b059c874c99d6c4501c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:23:12,318 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:23:12,459 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-06 22:23:12,472 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:23:12,473 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:23:12,522 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:23:12,523 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:23:12,523 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:23:12,524 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:23:12,530 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:23:12,531 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:23:12,531 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:23:12,532 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:23:12,534 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:23:12,534 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:23:12,535 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:23:12,535 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:23:12,536 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:23:12,536 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:23:12,536 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:23:12,537 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:23:12,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:23:12,538 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:23:12,538 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:23:12,539 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:23:12,539 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:23:12,540 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:23:12,540 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:23:12,541 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:23:12,541 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:23:12,543 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:23:12,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:23:12,543 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:23:12,544 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:23:12,544 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:23:12,545 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:23:12,545 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:23:12,545 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:23:12,545 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:23:12,546 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:23:12,547 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:23:12,547 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c172a69da8014b256a4fe200ae36374b8205f0bb7886b059c874c99d6c4501c [2023-11-06 22:23:13,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:23:13,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:23:13,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:23:13,054 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:23:13,054 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:23:13,056 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i [2023-11-06 22:23:16,320 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:23:16,675 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:23:16,675 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/sv-benchmarks/c/ldv-memsafety/memleaks_test7-1.i [2023-11-06 22:23:16,693 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/data/98c15f315/7bc1277f2c5f44ecb4dcc1b8ee1e89f4/FLAG00b45ba3e [2023-11-06 22:23:16,709 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/data/98c15f315/7bc1277f2c5f44ecb4dcc1b8ee1e89f4 [2023-11-06 22:23:16,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:23:16,714 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:23:16,715 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:23:16,715 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:23:16,721 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:23:16,722 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:23:16" (1/1) ... [2023-11-06 22:23:16,723 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60e87b54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:16, skipping insertion in model container [2023-11-06 22:23:16,723 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:23:16" (1/1) ... [2023-11-06 22:23:16,775 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:23:17,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:23:17,346 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 22:23:17,361 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:23:17,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:23:17,463 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:23:17,535 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:23:17,646 WARN L672 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:23:17,651 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:23:17,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:17 WrapperNode [2023-11-06 22:23:17,652 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:23:17,653 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:23:17,653 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:23:17,653 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:23:17,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:17" (1/1) ... [2023-11-06 22:23:17,715 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:17" (1/1) ... [2023-11-06 22:23:17,742 INFO L138 Inliner]: procedures = 170, calls = 76, calls flagged for inlining = 25, calls inlined = 7, statements flattened = 55 [2023-11-06 22:23:17,743 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:23:17,744 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:23:17,744 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:23:17,744 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:23:17,754 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:17" (1/1) ... [2023-11-06 22:23:17,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:17" (1/1) ... [2023-11-06 22:23:17,758 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:17" (1/1) ... [2023-11-06 22:23:17,758 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:17" (1/1) ... [2023-11-06 22:23:17,769 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:17" (1/1) ... [2023-11-06 22:23:17,786 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:17" (1/1) ... [2023-11-06 22:23:17,788 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:17" (1/1) ... [2023-11-06 22:23:17,790 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:17" (1/1) ... [2023-11-06 22:23:17,793 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:23:17,794 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:23:17,794 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:23:17,794 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:23:17,795 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:17" (1/1) ... [2023-11-06 22:23:17,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:23:17,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:23:17,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:23:17,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:23:17,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-06 22:23:17,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-06 22:23:17,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:23:17,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:23:17,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:23:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:23:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:23:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:23:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:23:17,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:23:18,033 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:23:18,035 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:23:18,196 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:23:18,203 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:23:18,203 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:23:18,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:23:18 BoogieIcfgContainer [2023-11-06 22:23:18,205 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:23:18,208 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:23:18,208 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:23:18,211 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:23:18,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:23:16" (1/3) ... [2023-11-06 22:23:18,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf1bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:23:18, skipping insertion in model container [2023-11-06 22:23:18,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:17" (2/3) ... [2023-11-06 22:23:18,213 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf1bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:23:18, skipping insertion in model container [2023-11-06 22:23:18,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:23:18" (3/3) ... [2023-11-06 22:23:18,215 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test7-1.i [2023-11-06 22:23:18,235 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:23:18,235 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 22:23:18,280 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:23:18,287 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@209dac68, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:23:18,288 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-06 22:23:18,292 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 29 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:18,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 22:23:18,301 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:18,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:18,303 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2023-11-06 22:23:18,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:18,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1042630581, now seen corresponding path program 1 times [2023-11-06 22:23:18,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:18,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602816186] [2023-11-06 22:23:18,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:18,325 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:18,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:18,332 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:23:18,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 22:23:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:18,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:23:18,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:18,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:18,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:18,613 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:18,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602816186] [2023-11-06 22:23:18,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602816186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:18,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:18,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:23:18,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855639752] [2023-11-06 22:23:18,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:18,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:23:18,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:18,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:23:18,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:23:18,680 INFO L87 Difference]: Start difference. First operand has 32 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 29 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:18,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:18,829 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2023-11-06 22:23:18,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:23:18,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-11-06 22:23:18,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:18,842 INFO L225 Difference]: With dead ends: 31 [2023-11-06 22:23:18,850 INFO L226 Difference]: Without dead ends: 29 [2023-11-06 22:23:18,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:23:18,856 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 14 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:18,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 99 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:23:18,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-06 22:23:18,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-06 22:23:18,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 26 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:18,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2023-11-06 22:23:18,898 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 12 [2023-11-06 22:23:18,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:18,899 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2023-11-06 22:23:18,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:18,899 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2023-11-06 22:23:18,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 22:23:18,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:18,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:18,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:19,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:19,114 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2023-11-06 22:23:19,116 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:19,116 INFO L85 PathProgramCache]: Analyzing trace with hash 2038190425, now seen corresponding path program 1 times [2023-11-06 22:23:19,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:19,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1586794703] [2023-11-06 22:23:19,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:19,123 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:19,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:19,157 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:23:19,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 22:23:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:19,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:23:19,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:19,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:19,450 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:19,451 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:19,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1586794703] [2023-11-06 22:23:19,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1586794703] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:19,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:19,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:23:19,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220521042] [2023-11-06 22:23:19,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:19,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:23:19,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:19,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:23:19,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:23:19,455 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:19,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:19,597 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2023-11-06 22:23:19,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:23:19,598 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-11-06 22:23:19,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:19,601 INFO L225 Difference]: With dead ends: 46 [2023-11-06 22:23:19,601 INFO L226 Difference]: Without dead ends: 46 [2023-11-06 22:23:19,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:23:19,608 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 39 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:19,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 85 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:23:19,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-06 22:23:19,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 39. [2023-11-06 22:23:19,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 35 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:23:19,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2023-11-06 22:23:19,623 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 13 [2023-11-06 22:23:19,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:19,624 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2023-11-06 22:23:19,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:19,626 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2023-11-06 22:23:19,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 22:23:19,628 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:19,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:19,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:19,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:19,840 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2023-11-06 22:23:19,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:19,841 INFO L85 PathProgramCache]: Analyzing trace with hash 230735962, now seen corresponding path program 1 times [2023-11-06 22:23:19,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:19,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787160771] [2023-11-06 22:23:19,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:19,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:19,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:19,844 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:23:19,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-06 22:23:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:19,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:23:19,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:20,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:20,028 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:20,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:20,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787160771] [2023-11-06 22:23:20,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787160771] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:20,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:20,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:23:20,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795320889] [2023-11-06 22:23:20,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:20,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:23:20,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:20,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:23:20,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:23:20,041 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:20,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:20,093 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2023-11-06 22:23:20,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:23:20,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-11-06 22:23:20,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:20,098 INFO L225 Difference]: With dead ends: 33 [2023-11-06 22:23:20,098 INFO L226 Difference]: Without dead ends: 33 [2023-11-06 22:23:20,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:23:20,106 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 1 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:20,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 116 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:23:20,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-06 22:23:20,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2023-11-06 22:23:20,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 25 states have (on average 1.28) internal successors, (32), 28 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:23:20,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2023-11-06 22:23:20,117 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 13 [2023-11-06 22:23:20,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:20,118 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2023-11-06 22:23:20,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:20,118 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2023-11-06 22:23:20,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 22:23:20,120 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:20,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:20,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:20,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:20,333 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2023-11-06 22:23:20,333 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:20,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1240606195, now seen corresponding path program 1 times [2023-11-06 22:23:20,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:20,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067669700] [2023-11-06 22:23:20,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:20,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:20,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:20,337 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:23:20,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-06 22:23:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:20,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:23:20,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:20,460 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 22:23:20,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:20,521 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:20,521 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:20,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067669700] [2023-11-06 22:23:20,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067669700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:20,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:20,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:23:20,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189036256] [2023-11-06 22:23:20,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:20,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:23:20,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:20,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:23:20,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:23:20,525 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:20,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:20,613 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2023-11-06 22:23:20,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:23:20,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-11-06 22:23:20,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:20,615 INFO L225 Difference]: With dead ends: 32 [2023-11-06 22:23:20,615 INFO L226 Difference]: Without dead ends: 32 [2023-11-06 22:23:20,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:23:20,617 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 8 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:20,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 72 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:23:20,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-06 22:23:20,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2023-11-06 22:23:20,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.24) internal successors, (31), 27 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:23:20,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2023-11-06 22:23:20,622 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 14 [2023-11-06 22:23:20,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:20,622 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2023-11-06 22:23:20,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:20,623 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2023-11-06 22:23:20,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 22:23:20,623 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:20,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:20,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:20,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:20,835 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2023-11-06 22:23:20,836 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:20,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1240558431, now seen corresponding path program 1 times [2023-11-06 22:23:20,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:20,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566090879] [2023-11-06 22:23:20,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:20,837 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:20,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:20,838 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:23:20,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-06 22:23:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:20,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-06 22:23:20,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:20,942 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 22:23:21,003 WARN L861 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (= (store |c_old(#length)| |ldv_malloc_#res.base| |c_ldv_malloc_#in~size|) |c_#length|)) is different from true [2023-11-06 22:23:21,070 INFO L322 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-11-06 22:23:21,071 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2023-11-06 22:23:21,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:21,129 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:21,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:21,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566090879] [2023-11-06 22:23:21,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566090879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:21,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:21,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:23:21,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315344904] [2023-11-06 22:23:21,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:21,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:23:21,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:21,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:23:21,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2023-11-06 22:23:21,132 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:21,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:21,169 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2023-11-06 22:23:21,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:23:21,170 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-11-06 22:23:21,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:21,171 INFO L225 Difference]: With dead ends: 30 [2023-11-06 22:23:21,171 INFO L226 Difference]: Without dead ends: 30 [2023-11-06 22:23:21,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2023-11-06 22:23:21,172 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 13 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 36 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:21,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 56 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 36 Unchecked, 0.0s Time] [2023-11-06 22:23:21,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-06 22:23:21,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-11-06 22:23:21,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:23:21,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2023-11-06 22:23:21,178 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 14 [2023-11-06 22:23:21,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:21,178 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2023-11-06 22:23:21,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:21,178 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2023-11-06 22:23:21,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 22:23:21,179 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:21,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:21,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:21,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:21,391 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2023-11-06 22:23:21,391 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:21,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1240558432, now seen corresponding path program 1 times [2023-11-06 22:23:21,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:21,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423730446] [2023-11-06 22:23:21,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:21,392 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:21,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:21,393 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:23:21,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-06 22:23:21,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:21,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:23:21,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:21,463 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 22:23:21,489 WARN L861 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (= (store |c_old(#valid)| |ldv_malloc_#res.base| (_ bv1 1)) |c_#valid|)) is different from true [2023-11-06 22:23:21,512 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-06 22:23:21,513 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2023-11-06 22:23:21,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:21,541 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:21,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:21,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423730446] [2023-11-06 22:23:21,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423730446] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:21,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:21,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:23:21,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041093198] [2023-11-06 22:23:21,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:21,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:23:21,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:21,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:23:21,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2023-11-06 22:23:21,544 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:21,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:21,581 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2023-11-06 22:23:21,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:23:21,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-11-06 22:23:21,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:21,583 INFO L225 Difference]: With dead ends: 30 [2023-11-06 22:23:21,583 INFO L226 Difference]: Without dead ends: 30 [2023-11-06 22:23:21,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2023-11-06 22:23:21,584 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 9 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:21,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 50 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 34 Unchecked, 0.0s Time] [2023-11-06 22:23:21,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-06 22:23:21,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2023-11-06 22:23:21,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:23:21,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2023-11-06 22:23:21,589 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 14 [2023-11-06 22:23:21,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:21,589 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2023-11-06 22:23:21,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:21,590 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2023-11-06 22:23:21,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 22:23:21,591 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:21,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:21,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:21,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:21,809 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2023-11-06 22:23:21,810 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:21,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1470411142, now seen corresponding path program 1 times [2023-11-06 22:23:21,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:21,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330050215] [2023-11-06 22:23:21,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:21,811 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:21,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:21,812 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:23:21,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-06 22:23:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:21,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:23:21,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:21,975 WARN L861 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_entry_point_~#a7~0#1.base_7| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_entry_point_~#a7~0#1.base_7| (_ bv0 1)) |c_#valid|) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_entry_point_~#a7~0#1.base_7|) (_ bv0 1)))) is different from true [2023-11-06 22:23:21,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:21,985 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:21,985 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:21,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [330050215] [2023-11-06 22:23:21,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [330050215] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:21,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:21,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:23:21,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771716134] [2023-11-06 22:23:21,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:21,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:23:21,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:21,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:23:21,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2023-11-06 22:23:21,988 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:22,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:22,039 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2023-11-06 22:23:22,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:23:22,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-11-06 22:23:22,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:22,041 INFO L225 Difference]: With dead ends: 35 [2023-11-06 22:23:22,041 INFO L226 Difference]: Without dead ends: 25 [2023-11-06 22:23:22,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2023-11-06 22:23:22,042 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:22,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 65 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 38 Unchecked, 0.0s Time] [2023-11-06 22:23:22,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-06 22:23:22,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-11-06 22:23:22,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:22,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2023-11-06 22:23:22,047 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 14 [2023-11-06 22:23:22,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:22,047 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2023-11-06 22:23:22,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:22,048 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2023-11-06 22:23:22,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-06 22:23:22,049 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:22,049 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:22,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:22,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:22,265 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2023-11-06 22:23:22,265 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:22,266 INFO L85 PathProgramCache]: Analyzing trace with hash 617948704, now seen corresponding path program 1 times [2023-11-06 22:23:22,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:22,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1980034021] [2023-11-06 22:23:22,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:22,267 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:22,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:22,268 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:23:22,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-06 22:23:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:22,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-06 22:23:22,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:28,913 WARN L861 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_entry_point_~#a7~0#1.base_8| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_entry_point_~#a7~0#1.base_8|)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_entry_point_~#a7~0#1.base_8| (_ bv0 1))))) is different from true [2023-11-06 22:23:28,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:28,928 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:28,928 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:28,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1980034021] [2023-11-06 22:23:28,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1980034021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:28,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:28,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:23:28,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117170038] [2023-11-06 22:23:28,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:28,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:23:28,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:28,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:23:28,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=41, Unknown=3, NotChecked=12, Total=72 [2023-11-06 22:23:28,932 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:30,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:23:31,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:31,229 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2023-11-06 22:23:31,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:23:31,229 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2023-11-06 22:23:31,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:31,230 INFO L225 Difference]: With dead ends: 31 [2023-11-06 22:23:31,230 INFO L226 Difference]: Without dead ends: 22 [2023-11-06 22:23:31,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=21, Invalid=52, Unknown=3, NotChecked=14, Total=90 [2023-11-06 22:23:31,231 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 10 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:31,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 73 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 1 Unknown, 37 Unchecked, 2.2s Time] [2023-11-06 22:23:31,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-11-06 22:23:31,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-11-06 22:23:31,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:31,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2023-11-06 22:23:31,234 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 19 [2023-11-06 22:23:31,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:31,234 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2023-11-06 22:23:31,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:31,234 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2023-11-06 22:23:31,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-06 22:23:31,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:31,235 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:31,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:31,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:31,444 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2023-11-06 22:23:31,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:31,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1551551156, now seen corresponding path program 1 times [2023-11-06 22:23:31,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:31,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [619316358] [2023-11-06 22:23:31,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:31,445 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:31,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:31,447 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:23:31,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-06 22:23:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:31,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:23:31,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:31,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:23:31,549 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:31,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:23:31,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [619316358] [2023-11-06 22:23:31,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [619316358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:31,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:31,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:23:31,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324718549] [2023-11-06 22:23:31,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:31,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:23:31,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:23:31,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:23:31,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:23:31,553 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:31,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:31,575 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2023-11-06 22:23:31,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:23:31,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2023-11-06 22:23:31,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:31,577 INFO L225 Difference]: With dead ends: 22 [2023-11-06 22:23:31,577 INFO L226 Difference]: Without dead ends: 22 [2023-11-06 22:23:31,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:23:31,579 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 9 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:31,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 47 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:23:31,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-11-06 22:23:31,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-11-06 22:23:31,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 19 states have (on average 1.0) internal successors, (19), 19 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:31,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2023-11-06 22:23:31,590 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 20 [2023-11-06 22:23:31,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:31,591 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2023-11-06 22:23:31,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:23:31,591 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2023-11-06 22:23:31,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-06 22:23:31,592 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:31,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:31,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:31,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:31,804 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 3 more)] === [2023-11-06 22:23:31,805 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:31,805 INFO L85 PathProgramCache]: Analyzing trace with hash -857260757, now seen corresponding path program 1 times [2023-11-06 22:23:31,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:31,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687333249] [2023-11-06 22:23:31,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:31,805 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:31,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:31,806 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:23:31,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-06 22:23:31,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:23:31,885 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:23:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:23:31,957 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-06 22:23:31,957 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:23:31,958 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2023-11-06 22:23:31,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2023-11-06 22:23:31,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2023-11-06 22:23:31,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (2 of 6 remaining) [2023-11-06 22:23:31,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE (1 of 6 remaining) [2023-11-06 22:23:31,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (0 of 6 remaining) [2023-11-06 22:23:31,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:32,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:23:32,165 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:32,169 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:23:32,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:23:32 BoogieIcfgContainer [2023-11-06 22:23:32,202 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:23:32,203 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:23:32,203 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:23:32,203 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:23:32,203 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:23:18" (3/4) ... [2023-11-06 22:23:32,205 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:23:32,206 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:23:32,209 INFO L158 Benchmark]: Toolchain (without parser) took 15495.15ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 81.6MB in the beginning and 94.9MB in the end (delta: -13.3MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2023-11-06 22:23:32,209 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 67.1MB. Free memory was 44.4MB in the beginning and 44.3MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:23:32,210 INFO L158 Benchmark]: CACSL2BoogieTranslator took 937.24ms. Allocated memory is still 107.0MB. Free memory was 81.3MB in the beginning and 79.9MB in the end (delta: 1.4MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2023-11-06 22:23:32,210 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.93ms. Allocated memory is still 107.0MB. Free memory was 79.9MB in the beginning and 77.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:23:32,211 INFO L158 Benchmark]: Boogie Preprocessor took 49.65ms. Allocated memory is still 107.0MB. Free memory was 77.8MB in the beginning and 76.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:23:32,212 INFO L158 Benchmark]: RCFGBuilder took 411.31ms. Allocated memory is still 107.0MB. Free memory was 76.3MB in the beginning and 62.5MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 22:23:32,212 INFO L158 Benchmark]: TraceAbstraction took 13994.05ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 61.9MB in the beginning and 94.9MB in the end (delta: -33.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:23:32,213 INFO L158 Benchmark]: Witness Printer took 5.41ms. Allocated memory is still 132.1MB. Free memory is still 94.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:23:32,217 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 67.1MB. Free memory was 44.4MB in the beginning and 44.3MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 937.24ms. Allocated memory is still 107.0MB. Free memory was 81.3MB in the beginning and 79.9MB in the end (delta: 1.4MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.93ms. Allocated memory is still 107.0MB. Free memory was 79.9MB in the beginning and 77.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.65ms. Allocated memory is still 107.0MB. Free memory was 77.8MB in the beginning and 76.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 411.31ms. Allocated memory is still 107.0MB. Free memory was 76.3MB in the beginning and 62.5MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 13994.05ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 61.9MB in the beginning and 94.9MB in the end (delta: -33.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.41ms. Allocated memory is still 132.1MB. Free memory is still 94.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 789]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 789. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [ldv_global_msg_list={1:0}] [L790] CALL entry_point() [L783] struct A a7; [L784] CALL, EXPR probe1_6(&a7) [L764] int ret = - -3; VAL [a={7:0}, a={7:0}, ldv_global_msg_list={1:0}, ret=3] [L765] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={1:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L765] RET, EXPR ldv_malloc(sizeof(int)) VAL [a={7:0}, a={7:0}, ldv_global_msg_list={1:0}, ldv_malloc(sizeof(int))={3:0}, ret=3] [L765] int *p = (int *)ldv_malloc(sizeof(int)); [L766] COND FALSE !(p==0) [L768] CALL, EXPR f6() [L758] return __VERIFIER_nondet_int(); [L768] RET, EXPR f6() [L768] ret = f6() [L769] COND FALSE !(ret<0) [L771] CALL, EXPR g6() [L761] return __VERIFIER_nondet_int(); [L771] RET, EXPR g6() [L771] ret = g6() [L772] COND FALSE !(ret<0) VAL [a={7:0}, a={7:0}, ldv_global_msg_list={1:0}, p={3:0}, ret=0] [L774] a->p = p VAL [a={7:0}, a={7:0}, ldv_global_msg_list={1:0}, p={3:0}, ret=0] [L775] return 0; VAL [\result=0, a={7:0}, a={7:0}, ldv_global_msg_list={1:0}, p={3:0}, ret=0] [L784] RET, EXPR probe1_6(&a7) [L784] int ret = probe1_6(&a7); [L785] COND TRUE ret==0 [L786] FCALL disconnect_2_6(&a7) [L790] RET entry_point() - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 13.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 105 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 663 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 145 IncrementalHoareTripleChecker+Unchecked, 431 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 261 IncrementalHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 232 mSDtfsCounter, 261 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 90 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=2, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 10 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 124 ConstructedInterpolants, 18 QuantifiedInterpolants, 1123 SizeOfPredicates, 11 NumberOfNonLiveVariables, 493 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-06 22:23:32,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce72a4f5-36a8-402c-84ad-a68da662f14f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample